Thanos with IG vs Omni King

Thanos with the gauntlet at the height of its power, vs the multiverse busting idiot bastard stepchild avatar of the shows fans.

Who wins?

XSUPREMEXSKILLZ

IG Thanos.

Though I've actually raised Zen-Oh (manga) after his feat of effortlessly erasing thousands of Merged Zamasu's, the entire Multiverse, and all time and space in said multiverse (time ring was destroyed). It at least shows that Zen-Ohs erasure has a high degree of haxx.